Kun Li , Jiali Yao , Hiroaki Iitsuka , Noriyuki Yonezawa , Akiko Okamoto
{"title":"Crystal structure and Hirshfeld surface analysis of (2,7-diethoxynaphthalene-1,8-diyl)bis[(4-bromophenyl)methanone]","authors":"Kun Li , Jiali Yao , Hiroaki Iitsuka , Noriyuki Yonezawa , Akiko Okamoto","doi":"10.1107/S205698902401123X","DOIUrl":"10.1107/S205698902401123X","url":null,"abstract":"<div><div>In the title compound, the two 4-bromobenzoyl groups are attached in a non-coplanar fashion to the naphthalene ring system and are oriented in opposite directions.</div></div><div><div>The title compound, C<sub>28</sub>H<sub>22</sub>Br<sub>2</sub>O<sub>4</sub>, crystallizes in the monoclinic space group <em>P</em>2<sub>1</sub>/<em>c</em> at 193 K. The two 4-bromobenzoyl groups are attached in a non-coplanar fashion to the naphthalene ring system and are oriented in opposite directions. The two 4-bromobenzene rings are tilted almost symmetrically with respect to the naphthalene ring system. The crystal packing features several kinds of non-classical hydrogen bonds such as C—H⋯<em>X</em> (<em>X</em> = polar atom), in which the C—H group acts as a hydrogen-atom donor, and C—H⋯π interactions. The two-dimensional fingerprint plots generated in a Hirshfeld surface analysis show non-classical hydrogen bonding with short contacts involving the bromo group.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"80 12","pages":"Pages 1313-1317"},"PeriodicalIF":0.5,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Crystal structure and Hirshfeld surface analysis of bis(benzoylacetonato)(ethanol)dioxidouranium(VI)","authors":"Xolida Jabborova , Xusnida Tursinboyeva , Bakhtigul Ruzieva , Kambarali Turgunov , Jamshid Ashurov , Akmaljon Tojiboev , Shahlo Daminova","doi":"10.1107/S2056989024010417","DOIUrl":"10.1107/S2056989024010417","url":null,"abstract":"<div><div>In the complex, the ligand binds to the metal through an oxygen atom. The geometry of the seven-coordinate U atom is pentagonal bipyramidal, with the uranyl O atoms in apical positions.</div></div><div><div>A new uranium metal–organic complex salt, [U(C<sub>10</sub>H<sub>9</sub>O<sub>2</sub>)<sub>2</sub>O<sub>2</sub>(C<sub>2</sub>H<sub>6</sub>O)], with benzoyl acetone, namely, bis(benzoylacetonato)(ethanol)dioxidouranium(VI), was synthesized. The compound has monoclinic <em>P</em>2<sub>1</sub>/<em>n</em> symmetry. The geometry of the seven-coordinate U atom is pentagonal bipyramidal, with the uranyl oxygen atoms in apical positions. In the complex, the ligands bind to the metal through oxygen atoms. Additional weak O—H⋯O contacts between the cations and anions consolidate the three-dimensional arrangement of the structure. On the Hirshfeld surface, the largest contributions come from the short contacts such as van der Waals forces, including H⋯H, O⋯H and C⋯H. Interactions including C⋯C and O⋯C contacts were also observed; however, their contribution to the overall cohesion of the crystal structure is minor. A packing analysis was performed to check the strength of the crystal packing.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"80 12","pages":"Pages 1250-1254"},"PeriodicalIF":0.5,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Crystal structures of six miscellaneous products arising from the oxidation of precursors R1R2R3PEAuX (R = tert-butyl or isopropyl; E = S or Se; X = Cl, Br or I)","authors":"Daniel Upmann , Dirk Bockfeld , Peter G. Jones","doi":"10.1107/S2056989024010788","DOIUrl":"10.1107/S2056989024010788","url":null,"abstract":"<div><div>Various compounds involving phosphane chalcogenides (or their derivatives) and gold have been characterized; their packing is analysed in terms of weak hydrogen bonds and halogen⋯chalcogen contacts.</div></div><div><div>Compound <strong>1</strong>, (disulfane-1,2-diyl)bis(<em>tert</em>-butyldiisopropylphosphonium) bis[tetrachloridoaurate(III)], (<sup><em>t</em></sup>Bu<sup><em>i</em></sup>Pr<sub>2</sub>P)<sub>2</sub>S<sub>2</sub>·[AuCl<sub>4</sub>]<sub>2</sub>, contains the first structurally characterized dication of the form {(<em>R</em><sub>3</sub>P)<sub>2</sub><em>E</em>}<sub>2</sub><sup>2+</sup>. The ions are linked by S⋯Cl contacts and C—H<sub>methine</sub>⋯Cl hydrogen bonds to form ribbons of residues parallel to the <em>a</em> axis. Compound <strong>2</strong> is bis(di-<em>tert</em>-butylisopropylphosphine sulfide-κ<em>S</em>)gold(I) triiodide/diiodidoaurate(I)(0.905/0.095), [Au(C<sub>11</sub>H<sub>25</sub>PS)<sub>2</sub>][AuI<sub>2</sub>]<sub>0.095</sub>(I<sub>3</sub>)<sub>0.905</sub>, or [(<sup><em>t</em></sup>Bu<sub>2</sub><sup><em>i</em></sup>PrPS)<sub>2</sub>Au]I<sub>3</sub> with 9.5% of the triiodide replaced by diiodidoaurate(I). Chains of alternating anions and cations parallel to [110] are formed by two S⋯I contacts. Compound <strong>3</strong> is bis(<em>tert</em>-butyldiisopropylphosphine sulfide-κ<em>S</em>)gold(I) triiodide/diiodidoaurate(I)(0.875/0.125), [Au(C<sub>10</sub>H<sub>23</sub>PS)<sub>2</sub>][AuI<sub>2</sub>]<sub>0.125</sub>(I<sub>3</sub>)<sub>0.875</sub> or [(<sup><em>t</em></sup>Bu<sup><em>i</em></sup>Pr<sub>2</sub>PS)<sub>2</sub>Au]I<sub>3</sub> with 12.5% of the triiodide replaced by diiodoaurate(I). Chains parallel to [101] are formed by two S⋯I contacts. Compound <strong>4</strong>, bis(di-<em>tert</em>-butylisopropylphosphine sulfide-κ<em>S</em>)gold(I) heptaiodide, [Au(C<sub>11</sub>H<sub>25</sub>PS)<sub>2</sub>]I<sub>7</sub> or [(<sup><em>t</em></sup>Bu<sub>2</sub><sup><em>i</em></sup>PrPS)<sub>2</sub>Au]I<sub>3</sub>·2I<sub>2</sub>, is formally the bis-diiodine adduct of <strong>3</strong>, uncontaminated by diiodidoaurate(I). The cations and anions display crystallographic twofold symmetry. The unbranched I<sub>7</sub><sup>−</sup> groups, I—I⋯I—I—I⋯I—I, are bent at the third and fifth atoms. The anions are linked by two S⋯I contacts to form a layer structure parallel to the <em>bc</em> plane. In all three structures <strong>2</strong>–<strong>4</strong>, there are also weak C—H<sub>methine</sub>⋯I contacts. Compound <strong>5</strong>, dibromido(di-<em>tert</em>-butyldithiophosphato-κ<sup>2</sup><em>S</em>,<em>S</em>′)gold(III), [AuBr<sub>2</sub>(C<sub>8</sub>H<sub>18</sub>PS<sub>2</sub>)] or [AuBr<sub>2</sub>(<sup><em>t</em></sup>Bu<sub>2</sub>PS<sub>2</sub>)], contains a four-membered chelate ring. It crystallizes with imposed mirror symmetry. An S⋯Br contact links the molecules to form corrugated layers parallel to the <em>bc</em> plane. In compound <str","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"80 12","pages":"Pages 1331-1341"},"PeriodicalIF":0.5,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis and structure of pentakis(2-aminopyridinium) nonavanado(V)tellurate(VI)","authors":"Houda Mrad , Ahlem Maalaoui , Mohamed Rzaigui , Samah Akriche","doi":"10.1107/S2056989024010533","DOIUrl":"10.1107/S2056989024010533","url":null,"abstract":"<div><div>In the title compound, the tellurium(VI) and vanadium(V) atoms are statistically disordered over two of the ten metal-atom sites in the unprotonated [TeV<sub>9</sub>O<sub>28</sub>]<sup>5–</sup> heteropolyanion.</div></div><div><div>In the title compound, (C<sub>5</sub>H<sub>7</sub>N<sub>2</sub>)<sub>5</sub>[TeV<sub>9</sub>O<sub>28</sub>], the tellurium and vanadium atoms are statistically disordered over two of the ten metal-atom sites in the [TeV<sub>9</sub>O<sub>28</sub>]<sup>5–</sup> heteropolyanion. The anions stack along [100] and are extended into a three-dimensional supramolecular network through N—H⋯O and weak C—H⋯O hydrogen bonds involving the self-assembled 2-aminopyridinium pentamers, which are linked by C—H⋯π and π–π stacking interactions. The most important contributions to the Hirshfeld surface arise from O⋯H/H⋯O (54.8%), H⋯H (17.8%) and C⋯H/H⋯C (13.4%) contacts.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"80 12","pages":"Pages 1255-1258"},"PeriodicalIF":0.5,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mary Helene Marmande , Bailey N. Baxter , Matthias Zeller , David C. Forbes
{"title":"N,N′-Dibenzylethylenediammonium dichloride","authors":"Mary Helene Marmande , Bailey N. Baxter , Matthias Zeller , David C. Forbes","doi":"10.1107/S205698902400954X","DOIUrl":"10.1107/S205698902400954X","url":null,"abstract":"<div><div>Modulation of the phenyl groups in <em>N</em>,<em>N</em>′-dibenzylethylenediammonium dichloride in <em>P</em>2<sub>1</sub>/<em>n</em> allows for the formation of a network of strong N—H⋯Cl hydrogen bonds and C—H⋯Cl interactions and breaks <em>C</em>2/<em>c</em> symmetry.</div></div><div><div>The isolation and crystalline structure of <em>N</em>,<em>N</em>′-dibenzylethylenediammonium dichloride, C<sub>16</sub>H<sub>22</sub>N<sub>2</sub><sup>2+</sup>·2Cl<sup>−</sup>, is reported. This was obtained as an unintended product of an attempted Curtius rearrangement that involved benzylamine as one of the reagents and 1,2-dichloroethane as the solvent. Part of a series of reactions of a course-based undergraduate research experience (CURE), this was not the intended reaction outcome. The goal of the course was to engage students as active participants in a laboratory experience which applies the foundational techniques of a synthetic organic laboratory, using the Curtius rearrangement as a tool for the assembly of medicinally significant scaffolds. The isolation of the title compound, <em>N,N′</em>-dibenzylethylenediammonium dichloride, the result of the 1,2-dichloroethane solvent outcompeting the Curtius isocyanate intermediate in the reaction with the nucleophilic amine, confirms the importance of conducting research at the undergraduate level where the outcome is not predetermined. The solid-state structure of <em>N</em>,<em>N</em>′-dibenzylethylenediammonium dichloride was found to feature an all-<em>trans</em> methylene-ammonium backbone. Strong N—H⋯Cl hydrogen bonds and C—H⋯Cl interactions lead to a layered structure with pseudo-translational symmetry emulating a <em>C</em>-centered setting. Different phenyl torsion angles at each end of the molecule enable a more stable packing by allowing stronger hydrogen-bonding interactions, leading to a more ordered but lower symmetry and modulated structure in <em>P</em>2<sub>1</sub>/<em>n</em>.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"80 11","pages":"Pages 1130-1134"},"PeriodicalIF":0.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11660484/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Benjamin A. Mukda , Diane A. Dickie , Mark M. Turnbull
{"title":"Salts of 2-amino-5-iodopyridinium","authors":"Benjamin A. Mukda , Diane A. Dickie , Mark M. Turnbull","doi":"10.1107/S2056989024010259","DOIUrl":"10.1107/S2056989024010259","url":null,"abstract":"<div><div>Compound <strong>1</strong> is the anhydrous form of the known crystal 2-amino-5-iodopyridinium bromide monohydrate and crystallizes in layers inclined ∼40° to the <em>ab</em> face. Hydrogen bonding between the amino and pyridinium ions to the bromide ion acceptor stabilizes the layers. Compound <strong>2</strong> is a salt of 2-amino-5-iodopyridium and a trihalidocobaltate(II) ion with one coordinated 2-amino-5-iodopyridine ligand. The halide ions are mixed Cl/Br with differing occupancies.</div></div><div><div>Reaction of 2-amino-5-iodopyridine (5IAP) with concentrated HBr at room temperature yielded 2-amino-5-iodopyridinium bromide, C<sub>5</sub>H<sub>6</sub>IN<sub>2</sub><sup>+</sup>·Br<sup>−</sup> or (5IAPH)Br. The complex formed pale-yellow crystals, which exhibit significant hydrogen bonding between the amino and pyridinium N—H donors and bromide ion acceptors. Halogen bonding is also observed. Similarly, reaction of 5IAP with cobalt(II) chloride in mixed HCl/HBr in 1-propanol yielded 2-amino-5-iodopyridinium (2-amino-5-iodopyridine-κ<em>N</em><sup>1</sup>)bromido/chlorido(0.51/2.48)cobalt(II), (C<sub>5</sub>H<sub>6</sub>IN<sub>2</sub>)[CoBr<sub>0.51</sub>Cl<sub>2.48</sub>(C<sub>5</sub>H<sub>5</sub>IN<sub>2</sub>)] or (5-IAPH)[(5IAP)CoCl<sub>2.48</sub>Br<sub>0.51</sub>], as blue block-shaped crystals. Two of the three halide positions exhibit mixed occupancy [Cl/Br = 0.797 (5):0.203 (5) and 0.689 (6):0.311 (6)], while the third position is occupied solely by a chloride ion. Extensive hydrogen and halogen bonding is observed.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"80 11","pages":"Pages 1230-1234"},"PeriodicalIF":0.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11660468/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jacob P. Brannon , Kevin Liang , S. Chantal E. Stieber
{"title":"Crystal structure of [Ni(OH2)6]Cl2·(18-crown-6)2·2H2O","authors":"Jacob P. Brannon , Kevin Liang , S. Chantal E. Stieber","doi":"10.1107/S2056989024010041","DOIUrl":"10.1107/S2056989024010041","url":null,"abstract":"<div><div>A new crystal structure of [Ni(OH<sub>2</sub>)<sub>6</sub>]Cl<sub>2</sub>·(18-crown-6)<sub>2</sub>·2H<sub>2</sub>O is reported, demonstrating the effect a small chloride counter-ion has on the hydrogen-bonding network.</div></div><div><div>The crystal structure of the title compound, hexaaquanickel(II) dichloride–1,4,7,10,13,16-hexaoxacyclooctadecane–water (1/2/2), [Ni(H<sub>2</sub>O)<sub>6</sub>]Cl<sub>2</sub>·2C<sub>12</sub>H<sub>24</sub>O<sub>6</sub>·2H<sub>2</sub>O, is reported. The asymmetric unit contains half of the Ni(OH<sub>2</sub>)<sub>6</sub> moiety with a formula of C<sub>12</sub>H<sub>32</sub>ClNi<sub>0.50</sub>O<sub>10</sub> at 105 K and triclinic (<em>P</em>1) symmetry. The [Ni(OH<sub>2</sub>)<sub>6</sub>]<sup>2+</sup> cation has close to ideal octahedral geometry with O—Ni—O bond angles that are within 3° of idealized values. The supramolecular structure includes hydrogen bonding between the water ligands, 18-crown-6 molecules, Cl<sup>−</sup> anions, and co-crystallized water solvent. Two crown ether molecules flank the [Ni(OH<sub>2</sub>)<sub>6</sub>]<sup>2+</sup> molecule at the axial positions in a sandwich-like structure. The relatively symmetric hydrogen-bonding network is enabled by small Cl<sup>−</sup> counter-ions and likely influences the more idealized octahedral geometry of [Ni(OH<sub>2</sub>)<sub>6</sub>]<sup>2+</sup>.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"80 11","pages":"Pages 1190-1193"},"PeriodicalIF":0.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11660469/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Koji Kubono , Kanata Tanaka , Keita Tani , Yukiyasu Kashiwagi
{"title":"Crystal structure of (μ2-7-{[bis(pyridin-2-ylmethyl)amino-1κ3N,N′,N′′]methyl}-5-chloroquinolin-8-olato-2κN;1:2κ2O)trichlorido-1κCl,2κ2Cl-dizinc(II)","authors":"Koji Kubono , Kanata Tanaka , Keita Tani , Yukiyasu Kashiwagi","doi":"10.1107/S2056989024009782","DOIUrl":"10.1107/S2056989024009782","url":null,"abstract":"<div><div>The title compound is a dinuclear zinc(II) complex with three chlorido ligands and one pentadentate ligand containing quinolin-8-olato and bis(pyridin-2-ylmethyl)amine units. One Zn<sup>II</sup> atom has a tetrahedral coordination environment by two chlorido and chelate coordination of the N and O atoms of the quinolin-8-olato unit in the pentadentate ligand, and the other has a distorted trigonal–bipyramidal coordination environment by one chlorido and four donating atoms except for the N atom of the quinolin-8-olato in the pentadentate ligand. In the crystal, the molecules are linked by four different kinds of intermolecular C—H⋯Cl hydrogen bonds, forming a three-dimensional network structure.</div></div><div><div>The title compound, [Zn<sub>2</sub>(C<sub>22</sub>H<sub>18</sub>ClN<sub>4</sub>O)Cl<sub>3</sub>], is a dinuclear zinc(II) complex with three chlorido ligands and one pentadentate ligand containing quinolin-8-olato and bis(pyridin-2-ylmethyl)amine groups. One of the two Zn<sup>II</sup> atom adopts a tetrahedral geometry and coordinates two chlorido ligands with chelate coordination of the N and O atoms of the quinolin-8-olato group in the ligand. The other Zn<sup>II</sup> atom adopts a distorted trigonal–bipyramidal geometry, and coordinates one chlorido-O atom of the quinolin-8-olato group and three N atoms of the bis(pyridin-2-ylmethyl)amine unit. In the crystal, two molecules are associated through a pair of intermolecular C—H⋯Cl hydrogen bonds, forming a dimer with an <em>R</em><sub>2</sub><sup>2</sup>(12) ring motif. Another intermolecular C—H⋯Cl hydrogen bond forms a spiral <em>C</em>(8) chain running parallel to the [010] direction. The dimers are linked by these two intermolecular C—H⋯Cl hydrogen bonds, generating a ribbon sheet structure in <em>ac</em> plane. Two other intermolecular C—H⋯Cl hydrogen bonds form a <em>C</em>(7) chain along the <em>c</em>-axis direction and another <em>C</em>(7) chain generated by a <em>d</em>-glide plane. The molecules are cross-linked through the four intermolecular C—H⋯Cl hydrogen bonds to form a three-dimensional network.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"80 11","pages":"Pages 1175-1179"},"PeriodicalIF":0.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11660488/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Crystal structure, Hirshfeld surface analysis, and DFT and molecular docking studies of 6-cyanonaphthalen-2-yl 4-(benzyloxy)benzoate","authors":"Mahadevaiah Harish Kumar , Shivakumar Santhosh Kumar , Hirehalli Chikkegowda Devarajegowda , Hosapalya Thimmaiah Srinivasa , Bandrehalli Siddagangaiah Palakshamurthy","doi":"10.1107/S2056989024009964","DOIUrl":"10.1107/S2056989024009964","url":null,"abstract":"<div><div>The crystal structure of the title compound is consolidated by C—H⋯O, C—H⋯π and π–π stacking interactions. Hirshfeld surface analysis indicates that dispersion energy makes a dominate contribution to the isosurface.</div></div><div><div>In the title compound, C<sub>25</sub>H<sub>17</sub>NO<sub>3</sub>, the torsion angle associated with the phenyl benzoate group is −173.7 (2)° and that for the benzyloxy group is −174.8 (2)° establishing an <em>anti</em>-type conformation. The dihedral angles between the ten-membered cyanonaphthalene ring and the aromatic ring of the phenyl benzoate and the benzyloxy fragments are 40.70 (10) and 87.51 (11)°, respectively, whereas the dihedral angle between the aromatic phenyl benzoate and the benzyloxy fragments is 72.30 (13)°. In the crystal, the molecules are linked by weak C—H⋯O interactions forming <em>S</em>(4) chains propagating parallel to [010]. The packing is consolidated by three C—H⋯π interactions and two π–π stacking interactions between the aromatic rings of naphthalene and phenyl benzoate with centroid-to-centroid distances of 3.9698 (15) and 3.8568 (15) Å, respectively. Intermolecular interactions were quantified using Hirshfeld surface analysis. The molecular structure was further optimized by density functional theory (DFT) at the B3LYP/6–311+ G(d,p) level, revealing that the energy gap between HOMO and LUMO is 3.17 eV. Molecular docking studies were carried out for the title compound as a ligand and SARS-Covid-2(PDB ID:7QF0) protein as a receptor giving a binding affinity of −9.5 kcal mol<sup>−1</sup>.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"80 11","pages":"Pages 1180-1185"},"PeriodicalIF":0.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11660483/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis, crystal structure and Hirshfeld surface analysis of (2-amino-1-methylbenzimidazole-κN3)aquabis(4-oxopent-2-en-2-olato-κ2O,O′)nickel(II) ethanol monosolvate","authors":"Kyzlarkhan Siddikova , Murodov Sardor , Akmaljon Tojiboyev , Zukhra Kadirova , Jamshid Ashurov , Shahlo Daminova","doi":"10.1107/S2056989024008958","DOIUrl":"10.1107/S2056989024008958","url":null,"abstract":"<div><div>The title compound was synthesized from acetylacetone and benzimidazole derivative. There are two independent complex molecules in the asymmetric unit, which are linked by N—H⋯O and O—H⋯O hydrogen bonds along [111].</div></div><div><div>The molecule of the title compound, [Ni(C<sub>5</sub>H<sub>7</sub>O<sub>2</sub>)<sub>2</sub>(C<sub>8</sub>H<sub>9</sub>N<sub>3</sub>)(H<sub>2</sub>O)]·C<sub>2</sub>H<sub>5</sub>OH, has triclinic (<em>P</em><blockquote><div><figure><img></figure></div></blockquote>) symmetry. This compound is of interest for its antimicrobial properties. The asymmetric unit comprises two independent complex molecules, which are linked by N—H⋯O and O—H⋯O hydrogen bonds along [111]. Hirshfeld surface analysis indicates that 71.7% of intermolecular interactions come from H⋯H contacts, 17.7% from C⋯H/H⋯C contacts and 7.6% from O⋯H/H⋯O contacts, with the remaining contribution coming from N⋯H/H⋯N, C⋯N/N⋯C, C⋯C and O⋯O contacts.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"80 11","pages":"Pages 1186-1189"},"PeriodicalIF":0.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11660480/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}